Hi同学们，我们今天分析一篇有关海洋生物的TPO综合写作，本篇是TPO34的题目，本篇首先在阅读首段明确提及了一个时间点，然后在阅读主体段和之后听力段落当中也针对首段的时间点做了关于time-line的对比说明，我们分析本篇综合写作是有研究价值的，是为了让我们更多对于时间细节针对逻辑推演的过程中使我们学会综合写作的取材方式，并让我们对阅读首段提及时间细节这类题目有审题敏感度。
The reading passage introduced a Steller’s sea cow and illustrated three guesses why this marine mammal died out in 1768. Yet the listening passage discussed all the guesses to overturn the ideas of sea cow extinction from reading.
The first guess offered by reading is that sea cows were over hunted by native Siberians while the listening asserted that sea cows were enormous enough to support feeding the locals for months and the population of Siberians was not big enough to kill off all the sea cows as their food supply.
The second extinction guess from reading is food shortage, kelp to be specific. It believed that the decline of kelp followed by a ecosystem disturbance happened early before 1768 is the reason why sea cows died out. However, the listening argued that ecological disturbances could affect marine animals in all kinds and there was no evidence of declines among other creatures, so the ecological hypothesis is questioned.
The third guess of sea cow extinction is charged upon the European fur traders. The reading passage mentioned fur traders came to the Bering Island after 1741 and the listening passage certified that population of sea cows was at its largest many years before 1700s and the decline was happened before the arrival of fur traders many years ahead, this invalided fur traders kill off sea cows.
了解更多托福考试，托福备考技巧，咨询免费电话：400-618-0272，或者【点击在线咨询】，我们会有资深老师为您解答。
热门推荐：
新通教育资深留学考试培训规划师，国立华侨大学英文专业毕业，英语专业八级，8年英语考试培训、留学移民咨询工作经验。熟知托福、雅思、SAT、GRE、GMAT等多项国际英文考试，善于结合个体情况具体分析学生备考学习中存在的问题，合理规划定制性价比最高、出分最快的学习计划。
本文系新通教育独家稿件，版权为新通教育所有。欢迎转载，请务必保持原文完整，并注明作者和出处“新通教育网（）”。谢谢！
咨询时间：0:00 ~ 24:00
非咨询时间也可留言
咨询时间：8:00 ~ 24:00
根据您提供的信息
新通留学专业顾问将为您制定专属选校方案
请保持手机畅通，注意接听来电
想要获取更多考试培训信息，可以通过以下方式联系到距离您最近的新通教育；
1、拨打新通教育咨询热线：400-618-8866；
2、点击【立即咨询】 ，我们会有课程老师为你解答考试难题；
3、完成以下表单，轻松预约，预约获取定制学习方案的机会。
*温馨提示：新通承诺绝不泄露您的个人信息
近期活动
